Ricarda

Key Facts

• Categorized as a Main-belt Asteroid
• Comparable in size to the city of Philadelphia (18.31 km diameter)
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

Ricarda is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Ricarda as potentially hazardous because its orbit does not bring it close to Earth.

Ricarda orbits the sun every 1,470 days (4.02 years), coming as close as 2.14 AU and reaching as far as 2.92 AU from the sun. Ricarda is about 18.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Philadelphia.

The rotation of Ricarda has been observed. It completes a rotation on its axis every 82.90 hours.

No Close Approaches

Ricarda's orbit is 1.19 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

Ricarda's orbit is determined by observations dating back to July 22, 1917. It was last officially observed on Feb. 19, 2023. The IAU Minor Planet Center records 5,926 observations used to determine its orbit.

Scientists have been able to determine this object's shape:

View asteroid Ricarda in 3D.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of Ricarda:

• 46 Hestia (A857 QA)
• 292 Ludovica (A890 HB)
• 355 Gabriella (A893 BD)

References

• JPL Small Body Database
• Mission Design
• Sky Finder Chart

Orbit Simulation

Sky Map

The position of Ricarda is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.